docs: def calculate_embedding(self, batch_image_bytes):
      """Get the embeddings for a given JPEG image.
  
      Args:
        batch_image_bytes: As if returned from [ff.read() for ff in file_list].
  
      Returns:
        The Inception embeddings (bottleneck layer output)
      """
      return self.tf_session.run(
          self.embedding, feed_dict={self.input_jpeg: batch_image_bytes})